FTCS-13RG-xxI 1000BASE-T SFP Copper Transceiver – 10/100/1000BASE-T RJ45 SFP Module

10/100/Hot Pluggable, 1.25Gb/s,Cat-5 UTP Cable, 100m
1000BASE-T SFP Copper Transceiver
FTCS-13RG-xxI

Features:

Up to 1.25Gb/s bi-directional data links
Hot-pluggable SFP footprint
Extended case temperature range (-40°C to +85°C )
Fully metallic enclosure for low EMI
Low power dissipation
Compact RJ-45 connector assembly
Detailed product information in EEPROM
+3.3V single power supply
Access to physical layer IC via 2-wire serial bus
10/100/1000 BASE-T operation in host systems with SGMII interface
Compliant with SFP MSA
Compliant with IEEE Std 802.3
Compliant with FCC 47 CFR Part 15, Class B
RoHS Compliant Products

Applications:

1.25 Gigabit Ethernet over Cat 5 cable
Switch/Router to Switch/Router Link
High speed I/O for file severs

Description:

F-tone Networks’s 10/100/1000BASE-T Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA). Theyare compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3. They are RoHS compliant and per Directive 2011/65/EU. The 1000BASE-T physical layer IC (PHY) can be accessed via I²C, allowing access to all PHY settings and features.They support 10/100/1000 BASE-T operation in host systems with SGMII interface and auto-negotiation. FTCS-13RG-xxI-L shall support Rx_LOS as link indication function, and FTCS-13RG-xxI shall not support Rx_LOS as link indication feature (RX_LOS is internally grounded).

SFP to Host Connector Pin Out

Pin	Signal name	Description	MSA Notes
1	VEET	Transmitter ground (common with receiver ground)
2	TXFAULT	Transmitter Fault. Not supported	Note 1
3	TDIS	Transmitter Disable. PHY disabled on high or open	Note 2
4	MOD_DEF(2)	Module Definition 2. Data line for Serial ID.	Note 3
5	MOD_DEF(1)	Module Definition 1. Clock line for Serial ID.	Note 3
6	MOD_DEF(0)	Module Definition 0. Grounded within the module.	Note 3
7	Rate Select	No connection required
8	LOS	Loss of Signal – High Indicates Loss of Signal	Note 4
9	VEER	Receiver Ground (common with transmitter ground)
10	VEER	Receiver Ground (common with transmitter ground)
11	VEER	Receiver Ground(common with transmitter ground)
12	RD-	Receiver Inverted DATA out. AC Coupled	Note 5
13	RD+	Receiver Non-inverted DATA out. AC Coupled	Note 5
14	VEER	Receiver Ground (common with transmitter ground)
15	VCCR	Receiver Power Supply	Note 6
16	VCCT	Transmitter Power Supply	Note 6
17	VEET	Transmitter Ground (Common with Receiver Ground)
18	TD+	Transmitter Non-Inverted DATA in. AC Coupled.	Note 7
19	TD-	Transmitter Inverted DATA in. AC Coupled.	Note 7
20	VEET	Transmitter Ground(common with receiver ground)

Table 1. SFP to host connector pin assignments and descriptions

Notes:

1. TX Fault is not used and is always tied to ground.
2. TX Disableas described in the MSA is not applicable to the 1000BASE-T module, but is used for convenience as an input to reset the internal ASIC. PHY disabled on TDIS > 2.0V or open, enabled on TDIS < 0.8V, used to reset the module.
3. Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7-10 KW resistor on the host board to a supply less than VCCT + 0.3 V or VCCR + 0.3V.

Mod Def 0 is tied to ground through a 100 ohm resistor to indicate that the module is present.

Mod-Def 1 is clock line of two wire serial interface for optional serial ID

Mod-Def 2 is data line of two wire serial interface for optional serial ID

1. RX_LOS (Loss of Signal): LVTTL compatible with a maximum voltage of Host_Vcc. RX_LOS can enabled or disabled (Refer to Ordering information), for the module without Rx_LOS as link indication function, RX_LOS is not used and is always tied to ground via resistor.
2. RD-/+: These are the differential receiver outputs. They are ac coupled 100 ohm differential lines which should be terminated with 100 ohm differential. The ac coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 2000 mV differential (185 – 1000 mV single ended) when properly terminated. These levels are compatible with CML and LVPECL voltage swings.
3. VCCR and VCCT are the receiver and transmitter power supplies. They are defined as 3.3 V ± 5% at the SFP connector pin. The maximum supply current is about 300mA and the associated in-rush current will typically be no more than 30 mA above steady state after 500 nanoseconds.
4. TD-/+: These are the differential transmitter inputs. They are ac coupled differential lines with 100 W differential termination inside the module. The ac coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 –1200 mV single ended), though it is recommended that values between 500 and 1200 mV differential (250 – 600 mV single ended) be used for best EMIperformance.

These levels are compatible with CML and LVPECL voltage swings.

Figure 1. Diagram of host board connector block pin numbers and names

+3.3V Volt Electrical Power Interface

The product has an input voltage range of 3.3 V +/- 5%. The 4 V maximum voltage is not allowed for continuous operation.

Parameter	Symbol	Min.	Typical	Max.	Units	Notes/Conditions
Supply Current	Is		320	375	mA	1.2W max power over full range of voltage and temperature. See caution note below
Input Voltage	Vcc	3.13	3.3	3.47	V	Referenced to GND
Surge Current	Isurge		30		mA	Hot plug above steady state current. See caution note

Table 2. +3.3 Volt electrical power interface

Caution:

Power consumption and surge current are higher than the specified values in the SFP MSA.

Low-Speed Signals

MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals. Both MOD_ DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc.

Parameter	Symbol	Min.	Max.	Units	Notes/Conditions
SFP Output LOW	VOL	0	0.5	V	4.7k to 10k pull-up to host_Vcc.
SFP Output HIGH	VOH	host_Vcc -0.5	host_Vcc + 0.3	V	4.7k to 10k pull-up to host_Vcc.
SFP Input LOW	VIL	0	0.8	V	4.7k to 10k pull-up to Vcc.
SFP Input HIGH		2	Vcc + 0.3 V	V	4.7k to 10k pull-up to Vcc.

Table 3. Low-speed signals, electronic characteristics

High-Speed Electrical Interface

All high-speed signals are AC-coupled internally.

Transmission Line-SFP
Parameter	Symbol	Min.	Typical	Max.	Units	Notes/Conditions
Line Frequency	fL		125		MHz	5-level encoding, per IEEE 802.3
Tx Output Impedance	Zout,TX		100		Ohm	Differential
Rx Input Impedance	Zin,RX		100		Ohm	Differential

Table 4. High-speed electrical interface, transmission line-SFP

Host-SFP
Parameter	Symbol	Min.	Typical	Max.	Units	Notes/Conditions
Single ended data input swing	Vinsing	250		1200	mV	Single ended
Single ended data output swing	Voutsing	350	100	800	mV	Single ended
Rise/Fall Time	Tr,Tf		175		psec	20%-80%
Tx Input Impedance	Zin		50		Ohm	Single ended
Rx Output Impedance	Zout		50		Ohm	Single ended

Table 5. High-speed electrical interface, host-SFP

General Specifications

Parameter	Symbol	Min.	Typical	Max.	Units	Notes/Conditions
Data Rate	BR	10		1,000	Mb/s	IEEE 802.3 compatible.
Cable Length	L			100	m	Category 5 UTP. BER <10^-12

Table 6. General specifications

Notes:

Clock tolerance is +/- 50ppm.
By default, the FTCS-13RG-xxI is a full duplex device in preferred mastermode.
Automatic crossover detection is enabled. External crossover cable is notrequired.
10/100/1000 BASE-T operation requires the host system to have an SGMII interface with no clocks.

Environmental Specifications

The product has a temperature range from -40°C to +85°C case temperature as specified in Table 7.

Parameter	Symbol	Min.	Typical	Max.	Units	Notes/Conditions
Operating Temperature	Top	-40		85	°C	Case temperature
Storage Temperature	Tsto	-40		100	°C	Ambient temperature

Table 7. Environmental specifications

Serial ID Memory Contents

Data

Address

Length

(Byte)

Name of

Length

Description and Contents

Base ID Fields

Identifier

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FTCS-13RG-xxI 1000BASE-T SFP Copper Transceiver – 10/100/1000BASE-T RJ45 SFP Module

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